SW6230705_Design Calculations_20230831 (22)

SERENTIY 3,4 & 5
SCM 14
Drawdown Time
Temporary storage volume= 27,108 cf
Orifice#ldiameter= 2.8 in
# 1
Area of orifice= 0.0428 sf
Orifice Coefficient(Cd) = 0.60
Orifice elevation= 303.00 ft
Water elevation= 304.75 ft
Driving head(H)= 0.58 ft
Discharge(Q)= 0.157434 cfs
Drawdown time= 172186 s
47.8 hr
2_0 days